8 messages in org.freebsd.freebsd-jailRe: bizarre mount_nullfs issue with j...| From | Sent On | Attachments |
|---|---|---|
| Dan Naumov | Apr 6, 2010 2:29 pm | |
| Glen Barber | Apr 6, 2010 2:36 pm | |
| Dan Naumov | Apr 6, 2010 2:42 pm | |
| Mars G Miro | Apr 6, 2010 8:48 pm | |
| Dan Naumov | Apr 6, 2010 11:28 pm | |
| Mars G Miro | Apr 6, 2010 11:42 pm | |
| Aiza | Apr 7, 2010 12:09 am | |
| Dan Naumov | Apr 7, 2010 4:01 am |
| Subject: | Re: bizarre mount_nullfs issue with jails / ezjail | |
|---|---|---|
| From: | Mars G Miro (sp...@anarchy.in.the.ph) | |
| Date: | Apr 6, 2010 11:42:48 pm | |
| List: | org.freebsd.freebsd-jail | |
On Wed, Apr 7, 2010 at 2:28 PM, Dan Naumov <dan....@gmail.com> wrote:
An additional question: how come "sade" and "sysinstall" which are run inside the jail can see (and I can only assume they can also operate on and damage) the real underlying disks of the host?
Disks (as well as others you have in your host's /dev) aren't visible inside jails.
Well, somehow they are on my system.
I guess I should've also clarified that the jail was installed using ezjail and not completely manually
From /usr/local/etc/ezjail/semipublic
export jail_semipublic_devfs_enable="YES" export jail_semipublic_devfs_ruleset="devfsrules_jail"
Well I'm not entirely familiar w/ ezjail but I use jails all the time, and I can tell you that /dev in jails is very limited, here's a /dev jail of mine:
mars@spry9:~> ls -al /dev/ total 2 crw-rw-rw- 1 root wheel 0, 58 Mar 27 03:02 crypto dr-xr-xr-x 2 root wheel 512 Mar 27 03:12 fd dr-xr-xr-x 2 root wheel 512 Mar 30 20:00 iso9660 lrwxr-xr-x 1 root wheel 14 Mar 27 03:12 log -> ../var/run/log crw-rw-rw- 1 root wheel 0, 33 Apr 7 14:33 null crw-rw-rw- 1 root wheel 0, 7 Mar 27 03:02 ptmx dr-xr-xr-x 2 root wheel 512 Mar 27 03:22 pts crw-rw-rw- 1 root wheel 0, 10 Mar 27 11:12 random lrwxr-xr-x 1 root wheel 4 Mar 27 03:12 stderr -> fd/2 lrwxr-xr-x 1 root wheel 4 Mar 27 03:12 stdin -> fd/0 lrwxr-xr-x 1 root wheel 4 Mar 27 03:12 stdout -> fd/1 lrwxr-xr-x 1 root wheel 6 Mar 27 03:12 urandom -> random crw-rw-rw- 1 root wheel 0, 34 Mar 27 03:02 zero mars@spry9:~>
So I guess it's a configuration issue w/ your jails.
- Sincerely, Dan Naumov
-- cheers mars
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